Yale CDF Group

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The Global Level 1 Decision Crate Yale Documents Conceptual Design of CDF FRED for Run II (Revised: 3/4/98) Board and Device Level Description of the Preproduction FRED Module (DRAFT: 1/18/99) FRED Block Diagram Specification for the Global Level 1 <--> Level 2 Interface Board for Run II (7/8/99) FRED Schematics (Production version, February 2000) Page One:------J0, J1, J2. Page Two:------Clocks and Buttons. Page Three:-----VME Interface. Page Four:------The "V" Chip. Page Five:------XC1, XC2, XC3. Page Six:-------TTL to ECL. Page Seven:-----Crossbows. Page Eight:------Level 1 Pipeline. Page Nine:------Level 2 Buffers. Page Ten:-------MLU (RAM). Page Eleven:-----Scaler Drivers. Page Twelve:-----Output to Level 2. Page Thirteen:----J3 Inputs. Page Fourteen:----Prescale Chips. Page Fifteen:-----The Control Chip. Description of the Production FRED Module Schematics A Drawing of the Production FRED Module Parts List for the Production FRED Module Photograph of the Production FRED module University of Chicago Documents Specifications and Design of the Level 1 Calorimeter Trigger PreFred Modules for the Run II Upgrade J3 Backplane and Transition Module for the Level 1 Calorimeter Trigger Upgrade The Chicago Trigger Upgrade Homepage G.F.